Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Edward Kornegay"'
Publikováno v:
SPIE Proceedings.
Accurate overlay measurements rely on robust, repeatable, and accurate feature position determination. In our effort to develop traceable overlay standards we have examined a number of edge detection methods and the parameters which affect those meas
Autor:
Theodore D. Doiron, Stephen H. Fox, Richard M. Silver, William B. Penzes, Stephen C. Rathjen, David T. Owens, Edward Kornegay, Michael T. Takac
Publikováno v:
SPIE Proceedings.
In this paper we describe our design and the manufacturing of a 2D grid artifact of chrome on quartz on a 150 mm X 150 mm X 6.35 mm plate. The design has been agreed upon by a number of Semiconductor Equipment Manufacturers International participants
Publikováno v:
Scopus-Elsevier
We present results of investigations into optical focus and edge detection algorithms relevant to overlay metrology. We compare gradient energy, standard deviation, contrast and summed intensity of acquired images as focus metrics for bright-field, s